Official NHA Assessment
Race 3: GAUTENG GUINEAS DAY 4 FEBRUARY MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)
Line Horse
Enchanting Lady
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
0 / 13
Within 2 points
Significant Diffs
13 / 13
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Work Of Time 2 60.0 1 0.00 3.5 - 77 6 +6 2 Dhow Solo 3 60.0 2 1.25 5.0 69 74 74 +5 3 Enchanting Lady 2 60.0 3 3.00 3.5 77 77 77 +0 4 Great Barrier 4 60.0 4 4.75 6.0 73 72 72 -1 5 Rainbow River 3 60.0 5 6.75 5.0 - 74 74 +74 6 Outer Dimension 2 60.0 6 12.25 3.5 72 77 77 +5 7 Sumiko 2 60.0 7 13.00 3.5 58 77 77 +19 8 Hallowed Secret 3 58.5 8 17.75 5.0 - 71 71 +71 9 Choc' Late 3 60.0 9 18.25 5.0 - 74 74 +74 10 Love Song 2 56.0 10 23.75 3.5 52 69 69 +17 11 Golden Argo 3 60.0 11 26.00 5.0 - 74 74 +74 12 Horizon View 3 60.0 12 32.00 5.0 - 74 74 +74 99 Fire Fire 3 60.0 99 0.00 5.0 - 74 74 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Work Of Time | - | 75 | 6 | +69 | 3.5 | - | |
| 2 | Dhow Solo | 69 | 62 | 74 | -12 | 5.0 | - | |
| 3 | Enchanting Lady Line | 77 | 67 | 77 | -10 | 3.5 | ||
| 4 | Great Barrier | 73 | 60 | 72 | -12 | 6.0 | - | |
| 5 | Rainbow River | - | 66 | 74 | -8 | 5.0 | - | |
| 6 | Outer Dimension | 72 | 70 | 77 | -7 | 3.5 | - | |
| 7 | Sumiko | 58 | 53 | 77 | -24 | 3.5 | - | |
| 8 | Hallowed Secret | - | 50 | 71 | -21 | 5.0 | - | |
| 9 | Choc' Late | - | 56 | 74 | -18 | 5.0 | - | |
| 10 | Love Song | 52 | 59 | 69 | -10 | 3.5 | - | |
| 11 | Golden Argo | - | 61 | 74 | -13 | 5.0 | - | |
| 12 | Horizon View | - | - | 74 | -74 | 5.0 | - | |
| 99 | Fire Fire | - | - | 74 | -74 | 5.0 | - |
Assessment Methodology
Calculation Steps:
- Identify Line Horse - consistent performer used as reference
- Calculate WFA Allowance based on age, distance, and month
- Apply Drag Adjustment for beaten margin
- Calculate Actual Weight Performance:
Weight - Drag - WFA - Compare to Line Horse to determine race rating
- Apply special rules (maiden caps, layoff allowance)
Key Formulas:
- Drag Effect: Varies by distance (see Benchmarks page)
- 1 length ≈ 1kg at 1 mile (1600m)
- WFA Scale: Based on Admiral Rous's 1855 table
- Rating Points: 1kg = 2 rating points